function [ status ] = mx_eyelink_tracker_mode( )
%MX_EYELINK_TRACKER_MODE Returns raw EyeLink mode numbers, defined in eyelink.h
% as EL_xxxx definitions.
%
%Returns:
% Raw EyeLink mode, -1 if link disconnected
%
% EL_IDLE_MODE         1
% EL_IMAGE_MODE        2
% EL_SETUP_MENU_MODE   3
%
% EL_USER_MENU_1       5
% EL_USER_MENU_2       6
% EL_USER_MENU_3       7
%
% EL_OPTIONS_MENU_MODE  8  /* NEW FOR EYELIKN II */
%
% EL_OUTPUT_MENU_MODE  9
%
% EL_DEMO_MENU_MODE    10
% EL_CALIBRATE_MODE    11
% EL_VALIDATE_MODE     12
% EL_DRIFT_CORR_MODE   13
% EL_RECORD_MODE       14
%
%----------------------------------------------------------------------------
% Copyright Eduardo Aponte 2013
% aponteeduardo@gmail.com